TITLE

Effect of poloidal inhomogeneity in plasma parameters on edge anomalous transport

AUTHOR(S)
Löchel, D.; Tokar, M. Z.; Hochbruck, M.; Reiser, D.
PUB. DATE
April 2009
SOURCE
Physics of Plasmas;Apr2009, Vol. 16 Issue 4, p044508
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
It is demonstrated that anomalous transport at the plasma edge in tokamaks is essentially affected by poloidal inhomogeneities in the plasma temperature and density arising, e.g., by the formation of multifaceted asymmetric radiation from the edge at the density limit.
ACCESSION #
38611516

 

Related Articles

  • Features of materials alloying under exposures to pulsed plasma streams. Makhlay, V. A.; Garkusha, I. E.; Bandura, A. N.; Byrka, O. V.; Chebotarev, V. V.; Fedorchenko, V. D.; Medvedev, A. V.; Tereshin, V. I. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Jan2010, Vol. 54 Issue 2, p185 

    Surface modifications and features of materials alloying under pulsed plasma exposures are investigated in this paper. The experiments were carried out with a pulsed plasma gun, which generates plasma streams with ion energies of up to 2 keV, a plasma density of (2– $20)\times...

  • Radiation fronts in tokamak divertor plasmas. Krasheninnikov, S.I.; Batishcheva, A.A. // Physics of Plasmas;Jun98, Vol. 5 Issue 6, p2297 

    Examines impurity radiation fronts in tokamak divertor plasmas. Factors enhancing the impurity radiation of divertors; Analysis of the energy transport and impurity radiation; Effects of divertor parameters on the formation of a V-shaped radiation front.

  • Thermal transport catastrophe and the tokamak edge density limit. D'Ippolito, D. A.; Myra, J. R. // Physics of Plasmas;Jun2006, Vol. 13 Issue 6, p062503 

    Experiments on the Alcator C-Mod tokamak [Phys. Plasmas 1, 1511 (1994)] have demonstrated the existence of a density limit that appears to be caused not by radiation but by perpendicular heat convection in the scrape-off layer (SOL). The present paper shows that the collisionality dependence of...

  • Measurements of the Plasma Radiative Loss Profile in the M-11M Tokamak with the Help of a Tangential-View AXUV Photodiode Array. Prokhorov, A. S.; Alekseyev, A. G.; Belov, A. M.; Lazarev, V. B.; Mirnov, S. V. // Plasma Physics Reports;Feb2004, Vol. 30 Issue 2, p136 

    The plasma radiative loss profile in the T-11M tokamak operating with a lithium limiter was measured using a sixteen-channel absolute extreme-ultraviolet photodiode array. The field of view of the detector was set in a vertical plane tangential to the plasma column axis. The radiative loss...

  • Plasma image edge detection based on the visible camera in the EAST device. Shu, Shuangbao; Xu, Chongyang; Chen, Meiwen; Yang, Zhendong // SpringerPlus;11/30/2016, Vol. 5 Issue 1, p1 

    The controlling of plasma shape and position are essential to the success of Tokamak discharge. A real-time image acquisition system was designed to obtain plasma radiation image during the discharge processes in the Experimental Advanced Superconducting Tokamak (EAST) device. The hardware...

  • Radiative losses and cooling rates in plasmas. Marchand, R.; Bonnin, X. // Physics of Fluids B: Plasma Physics;Aug92, Vol. 4 Issue 8, p2652 

    A precise definition is given of radiative losses and cooling rates; two rates commonly invoked when discussing impurity effects in plasmas. Radiative losses are directly measurable and they enter the total energy balance of the plasma. The electron cooling rate enters the electron thermal...

  • Study of the power exhaust and the role of impurities in the Torus Experiment for Technological... Pospieszczyk, A.; Samm, U.; Bertschinger, G.; Bogen, P.; Claassen, H.A.; Esser, G.; Gerhauser, H.; Hey, J.D.; Hintz, E.; Konen, L.; Lie, Y.T.; Rusbuldt, D.; Schorn, R.P.; Schweer, B.; Tokar, M.; Winter, J.; Durodie, F.; Koch, R.; Messiaen, A.M. // Physics of Plasmas;Jun95, Vol. 2 Issue 6, p2272 

    Studies the power exhaust and the role of impurities in the Torus Experiment for Technological Oriented Research. Establishment of a quasistationary radiating boundary layer; Use of silicon as a condensing element; Underlying mechanisms for the buildup of a radiating plasma mantle and the...

  • Comment on 'Explanation for MARFE formation and subsequent evolution into a detached symmetric plas. De Ploey, A.; Ven der Linden, R.A.M.; Goossens, M. // Physics of Plasmas;Jul97, Vol. 4 Issue 7, p2774 

    Comments on 'Physics of Plasmas' papers about the multifaceted asymmetric radiation from the edge (MARFE). Stability criteria for the thermal instability; MARFE formation and evolution; MARFE impurity density limits in tokamaks; MARFE suppression by external edge heating.

  • Marfes: Radiative condensation in tokamak edge plasma. Drake, J. F. // Physics of Fluids (00319171);Aug87, Vol. 30 Issue 8, p2429 

    Marfes are toroidally symmetric bands of high density radiating plasma that form at the edge of tokamak plasmas. The marfe results from a process of radiative condensation: A local increase in the plasma density increases the radiation rate and lowers the temperature, allowing the density to...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics